Koolau Reservoir
Low HazardUnsatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Hawaii |
| County | Honolulu |
| Nearest City | Wahiawa |
| River/Stream | S Fork Kaukonahua |
| Coordinates | 21.49200, -157.97000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 70 ft |
| Dam Height | 70 ft |
| Dam Length | 270 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Normal Storage | 122 acre-ft |
| Surface Area | 4 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Schofield Barracks |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 06/22/2022 |
| Emergency Action Plan | Not Required |